25/30504911 DC

This standard 25/30504911 DC BS EN 18156 Tactile lettering - Requirements on the presentation and application of Braille and raised characters is classified in these ICS categories:

• 11.180.30 Aids for blind or partially sighted people

This document specifies requirements and technical specifications for information in tactile lettering in the built environment. It sets out rules for content, design, arrangement and application of information elements so that blind and partially sighted people are able to locate, identify, fluently read and interpret this information. This document does not describe technical methods for producing tactile lettering. This document only applies to permanently installed tactile lettering.